Spreader bar



FIG. 1 is a top, front, left side perspective view of a spreader bar showing our new design;

FIG. 2 is a top, front, right side perspective view of the spreader bar thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

Broken lines indicate curved or contoured portions thereof. 

CLAIM The ornamental design for a spreader bar, as shown and described. 